Self‐Tuning n‐Type Bi ₂ (Te,Se) ₃ /SiC Thermoelectric Nanocomposites to Realize High Performances up to 300 °C

Bi 2 Te 3 thermoelectric materials are utilized for refrigeration for decades, while their application of energy harvesting requires stable thermoelectric and mechanical performances at elevated temperatures. This work reveals that a steady zT of ≈0.85 at 200 to 300 °C can be achieved by doping small amounts of copper iodide (CuI) in Bi 2 Te 2.2 Se 0.8 –silicon carbide (SiC) composites, where SiC nanodispersion enhances the flexural strength. It...